class CirclesTestCases(unittest.TestCase):
"""Test cases with only circles"""
def setUp(self):
self.p = Cartesian(0, 0)
self.p1 = Cartesian(1, 1)
self.p2 = Cartesian(10, 20)
self.circ = Circle(self.p, 5)
self.circ1 = Circle(self.p1, 1)
self.circ2 = Circle(self.p2, 1)
def test_perimeter(self):
self.assertAlmostEqual(self.circ1.perimeter(), 2*pi)
def test_edge_of_circle_in_circle(self):
test_point = Cartesian(5, 0)
self.assertTrue(self.circ.point_in_circle(test_point))
def test_point_outside_of_circle(self):
test_point = Cartesian(10, 10)
self.assertFalse(self.circ.point_in_circle(test_point))
def test_two_intersecting_circles_intersect(self):
self.assertTrue(self.circ.intersect(self.circ1))
# Make sure it's reflexive
self.assertTrue(self.circ1.intersect(self.circ))
def test_two_nonintersecting_circles_not_intersect(self):
self.assertFalse(self.circ.intersect(self.circ2))
# make sure it's relfexive
self.assertFalse(self.circ2.intersect(self.circ))
class DifferentObjectsTests(unittest.TestCase):
def setUp(self):
self.p = Cartesian(0, 0)
self.p1 = Cartesian(1, 1)
self.p2 = Cartesian(10, 20)
self.circ = Circle(self.p, 5)
self.circ1 = Circle(self.p1, 1)
self.circ2 = Circle(self.p2, 1)
self.p5 = Cartesian(1, 3)
self.p6 = Cartesian(2, 4)
self.p7 = Cartesian(4, 2)
self.p8 = Cartesian(3, 1)
self.poly2 = Polygon(self.p5,
self.p6,
self.p7,
self.p8)
self.p9 = Cartesian(-1, 1)
self.p10 = Cartesian(2, 1)
self.p11 = Cartesian(2, -1)
self.p12 = Cartesian(-1, -1)
self.poly3 = Polygon(self.p9,
self.p10,
self.p11,
self.p12)
def test_circle_overlapping_polygon_intersect(self):
self.assertTrue(self.poly2.intersect(self.circ1))
self.assertTrue(self.circ1.intersect(self.poly2))
def test_circle_not_overlapping_polygon_dont_intersect(self):
self.assertFalse(self.poly2.intersect(self.circ2))
self.assertFalse(self.circ2.intersect(self.poly2))
